Cementing device



Jan. 17, 1928.

R. w. SNYDER- CEMENTING DEVICE Filed May 28, 1925 2 Shets-Sheet 1 INVENTOR Robert W. @ydar,

ATTORNEY Jan. 17, 1928. 1,656,873

R. w. sNYISER CEMENTING DEVICE Filed May 28, 1925 2 Sheets-Sheet 3 ATTORNEY Patented Jan. 17, 1928.

UNITED STATES PATENT ROBERT W. SNYDER, OF AKRON, OHIO, ASSIGNOR 'IfO THE GOODYEAR TIRE &, RUBBER COMPANY, OF AKRON, OHIO, A OORPORATIQN OF OHIO.

OEMEN'IING DEVICE.

Application filed May 2 1 2 Scrial No, 3,455.

My invention relates to a method of and machine for tre t g r or zodtab i h as commonly utilized in manufacturing beads for pneumatic tires.

5 More particularly, however, my invention is directed to a new method and device for applying a cementing fluid to bead wrap before it is out into strips. 7

In a copending application Serial No.

10 54,229 there is disclosed a machine for 11.

winding rolls of rubberized fabric. It is there set'forth that a fabric material which has been impregnated with an unvulcanized rubber composition must be protected by dis posing between adjacent layers or convolutions thereof a material which has relatively non-adhesive properties. The invention provided a machine for removing such a protective material and conducting the free rubberized product to a bias cutter.

Where the product from the cutter is utilized i i wrapping beads, the end of the several strips are joined in series and wound in rolls. Before this can be accomplished eneoessfully, however, one end of the individual strips must be coated with a suitable cementing fluid in order to produce a satisfactory union. In the past it has been necessary for a workman to apply a cement mixture to the end thereof by means of a suitable device, such for example as a paint brush. It is the object of this invention to provide a machine to efiect this operation and th reby secure a more uniform product and obviate 5 the necessity of manual labor.

In the accompanying drawings: i

Fig. 1 is a sectional view of the exit end of an unwinding machine and a side eleva tion of a device constructed in accordance m with the principles of the present invention;

and

Fig. 2 is a front elevation of a device shown in Fig. 1 partly broken through the middle portion and on a somewhat larger scale.

In its essentials, the unwinding device re ferred to above comprises a plurality of power driven rolls 10 supported at either end by a frame 11, the end members of which are held in alignment by spacing bars 12. Rubberized fabric 13 is caused to pass about the power driven rolls in the direction of the arrow and engages a cementing device at a point indicated at 14. I The cementing device is supported from ne f th and m m of the n n ng mac ne y a ca ti e er L-member 6 N r ro end, re wo joino. em ers d 8 which upport parall ro atab e shaft .9 nd 20, he opposi e ds f which re. housed in journals mounted on the frame of the unwinding device. One of the shafts is p o ide h thr a ed s rfa nd i r t l by moons of a nd wh el 22 wh ch is eye reto It i als provide with a de lee o 2 wh as w Paral l n d finse 2 and m y e ve h ilower ifu oo od P rti n o the upp r ing member 28 and is so shaped as to avoid oht t th any of e rolls wo h ar ng mem ers 4, an 35 a e cased i i lower extrem ty, and p d w th rotat l shaf 37 an 3s p ivohn t e nd o the pp r sha t. i a pu l y 39 n e ge of hich ioho olod, th th ensod- Th orresp nding a h ow s ft i l ewise fitted with a pulley 40 which engages the horizontal peripheral portion of the former. It is partially submerged in a tank 42 of cementing fluid and is surrounded by a guard member 43 which allows only that amount of cement to pass which can be carried through a small vent or notch 44:.

The opposite ends of the shafts are fitted with gears 46 and 47, both of which mesh with an intermediate gear 48. In addition, the upper shaft is fitted with a sprocket wheel 49 which is interconnected to the power driven shaft above, by means of a chain 50. The course of the chain is outlined to avoid contact with the rolls by means of a plurality of idler sprocket wheels 52 mounted on the suspending member 33.

Grease cups 53 are provided in the bearing to afford satisfactory lubrication. In order to maintain the suspending member in vertical alignment, an adjustable oounter-weight 5 .1 is provided which will offset theunequal distribution of weight caused by the moment of the pulleys.

In operating the machine, the horizontal position of the device is so adjusted as to bring the flange portion of the cone pulley 39 in engagement with the edge of the mov ing fabric. This is accomplished by rotating the hand wheel which in turn causes the extended fingers oi the sleeve member 23 to engage the sprocket wheel '26 and shift the device in the appropriate direction. By causing the partially submerged pulley 40 to rotate, sutiicient cementing fluid adheresto the rolls to supply the cementing roll, and any excess which cannot pass through the notch irst provided in the guard member 43, must drain back into a storage or supply. The contact made by the two pulley members distributes the cementing fluid over the horizontal surface of the engaging roll. It will be noted that inasmuch as the device is driven by the unwinding machine, it will ops erate only when the fabric is in motion.

The consistency or composition of the cementing fluid utilized is optional. Ihave t'ound that although a greater portion of the solvent may evaporate before the ends of the cut strips are joined, the rubber deposit which remains after the evaporation is suffi ciently tacky to ail'ord a good union. It is important of course to maintainthe ceinent ing fluid at aunit'orm height. It is likewise important that the lubricated members of the machine be provided with guards in order that they will not come in contact with theiabric.

' From the foregoing description, it will readily be realized that the invention may be the subject of a wide number of varizu tions. For example, the device may be provided with an independent source of power, thus obviating drive equipment hereinabove described. It will be appreciated, however,

. introduced without departing from the scope of the invention, and I desire therefore that it shall be limited only in accordance with prior art and the appended claims.

l/Vhat I claim is:

1. A cement applying device comprising a horizontally i adjustable supporting member having a member suspended therefrom, said member maintaining a rotatable cementing roll and means for wetting the cementing roll 111 operative relation wlth a moving sheet of fabric. i i 2. An adjustable cementing device including rotatable means for supplying a cementing fluid to a moving sheet material and driviing means adapted for horizontal adjustment it including a sprocket wheel loosely keyed to a power driven shaft to adapt it for horizontal movement and interconnected with the rotatable cement applying means.

In a machine for removing liner from rolls at head wrap fabric and for conducting [ill the fabric to a bias cutter, a device to 'ap:

plying cement to an edge thereof comprising a driven flanged pulley engaging the fabric and in peripheral contact with another pulley partially submerged in a supply of the cementing fluid.

In a machine for removing liner from rolls of head wrap fabric and for conducting the fabric to abias cutter, a device for applying cement to an edge thereof con'lprising a driven flanged pulleyengaging the fabric, peripheral contact with another pulley partially submerged in a supply of the ocmenting fluid and provided with a scraper member having a restricted opening through which the cement adhering to the pulley must-pass before reaching the flanged pulley. In witness whereof, I have hereunto signed my l name.

ROBERT W. SNYDER. 

